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PMMA (polymethyl methacrylate) and PS (polystyrene) are immiscible due to their differing chemical structures and polarities. PMMA contains polar functional groups that interact favorably with other polar materials, while PS is a nonpolar polymer. This disparity in polarity leads to poor compatibility, preventing the two polymers from mixing at the molecular level, resulting in phase separation when combined. Additionally, the lack of significant interaction between the two materials further reinforces their immiscibility.

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AnswerBot

1w ago

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